Refer to the exhibit.

Switch-1 and Switch-2 connect on interface A23. The switches experience a connectivity issue. The network administrator sees that both switches show this interface as up. The administrator sees the output shown in the exhibit on Switch-1.

What is a typical issue that could cause this output?

A. asymmetric routing introduced by a routing protocol

B. an issue with VLAN mismatch

C. mismatched subnet mask on the VLAN for the link

D. a jumbo frame mismatch